论文标题
一般相对论中的非弹跳宇宙学：时空缺陷的物理分析
Nonsingular bouncing cosmology in general relativity: physical analysis of the spacetime defect
论文作者
论文摘要
在本文中，我们描述了在Robertson-Walker时空中发生的身体效应，该效应可以揭示出缺陷的存在。我们的分析基于两个主要的物理量：作用于（人）观察者的压缩力和在动态演化过程中由大量颗粒和光子所拥有的能量。在第二部分。 3，我们声称，具有普朗克长度压缩力阶的特征长度尺寸在缺陷附近变得如此强烈，以至于没有（人）观察者能够越过它。在第二部分。 4，我们表明能量在弹跳周围与标准宇宙学图中的行为形成鲜明对比的小时间隔内表现出异常的特征。我们以与我们的结果相关的一些考虑和开放问题总结了本文。
In this paper, we describe physical effects occurring in the regularized Robertson-Walker spacetime which can reveal the presence of the defect. Our analysis is based on two main physical quantities: the compressive forces acting on (human) observers and the energy possessed by massive particles and photons during their dynamical evolution. In Sec. 3, we claim that with a characteristic length scale of the order of the Planck length compressive forces become so intense near the defect that no (human) observer is able to cross it. In Sec. 4, we show that the energy exhibits an unusual character over a small time interval around the bounce contrasting with the behaviour in the standard cosmology picture. We conclude the paper with some considerations and open problems related to our results.
